feat: derive autoresponder schedule from backend

exec/lib/AppContext.php

@@ -108,14 +108,16 @@ final class AppContext
 
     private function scripts(): string
     {
-        return <<<'JS'
+        $selectedLabel = json_encode($this->t('Selected'), JSON_HEX_TAG | JSON_HEX_APOS | JSON_HEX_AMP | JSON_HEX_QUOT);
+        return <<<JS
 (function () {
+  var selectedLabel = {$selectedLabel};
   document.querySelectorAll('[data-date-value]').forEach(function (btn) {
     btn.addEventListener('click', function () {
       var target = document.getElementById(btn.getAttribute('data-date-target'));
       var label = document.getElementById(btn.getAttribute('data-date-label'));
       if (target) { target.value = btn.getAttribute('data-date-value') || ''; }
-      if (label) { label.textContent = 'Wybrano: ' + (btn.getAttribute('data-date-value') || ''); }
+      if (label) { label.textContent = selectedLabel + ': ' + (btn.getAttribute('data-date-value') || ''); }
       btn.closest('.br-restore-calendar').querySelectorAll('.br-cal-day').forEach(function (d) { d.classList.remove('is-selected'); });
       btn.classList.add('is-selected');
     });

exec/lib/BackendRuntimeConfig.php

@@ -0,0 +1,51 @@
+<?php
+declare(strict_types=1);
+
+final class BackendRuntimeConfig
+{
+    public static function sync(Settings $settings, string $backendScript, string $statePath = Settings::CONFIG_DIR . '/backend-state.json', string $errorLog = ''): void
+    {
+        $desired = $settings->backendMode();
+        $current = self::currentBackend($statePath);
+        if ($current === $desired) {
+            return;
+        }
+
+        if (!is_file($backendScript) || !is_executable($backendScript)) {
+            self::log($errorLog, 'Backend script not executable: ' . $backendScript);
+            return;
+        }
+
+        $process = proc_open([$backendScript, $desired], [['pipe', 'r'], ['pipe', 'w'], ['pipe', 'w']], $pipes);
+        if (!is_resource($process)) {
+            self::log($errorLog, 'Could not start backend script.');
+            return;
+        }
+        fclose($pipes[0]);
+        stream_get_contents($pipes[1]);
+        $stderr = stream_get_contents($pipes[2]);
+        fclose($pipes[1]);
+        fclose($pipes[2]);
+        $code = proc_close($process);
+        if ($code !== 0) {
+            self::log($errorLog, 'Backend script failed with code ' . $code . ': ' . trim($stderr));
+        }
+    }
+
+    private static function currentBackend(string $statePath): string
+    {
+        if (!is_file($statePath)) {
+            return '';
+        }
+        $data = json_decode((string)file_get_contents($statePath), true);
+        return is_array($data) ? (string)($data['active_backend'] ?? '') : '';
+    }
+
+    private static function log(string $errorLog, string $message): void
+    {
+        if ($errorLog === '') {
+            return;
+        }
+        @error_log('[' . date('c') . '] BACKEND_SYNC ' . $message . "\n", 3, $errorLog);
+    }
+}

exec/lib/RuleValidator.php

@@ -53,7 +53,7 @@ final class RuleValidator
     {
         $value = trim($value);
         if ($mode === 'exact_hour') {
-            if (!preg_match('/^[0-9]{4}-[0-9]{2}-[0-9]{2}T[0-9]{2}:00$/', $value)) {
+            if (!preg_match('/^[0-9]{4}-[0-9]{2}-[0-9]{2}T[0-9]{2}:[0-9]{2}$/', $value)) {
                 throw new InvalidArgumentException('Nieprawidłowa data lub godzina.');
             }
             $dt = DateTimeImmutable::createFromFormat('!Y-m-d\TH:i', $value, $tz);

exec/lib/Settings.php

@@ -51,7 +51,7 @@ final class Settings
             'DEFAULT_PLUGIN_LANGUAGE' => 'en',
             'DEFAULT_ENABLE' => 'true',
             'GLOBAL_AUTORESPONDER_TIMEZONE' => 'Europe/Warsaw',
-            'GLOBAL_AUTORESPONDER_SCHEDULE_MODE' => 'exact_hour',
+            'GLOBAL_AUTORESPONDER_BACKEND' => 'da',
             'GLOBAL_AUTORESPONDER_REPLY_EVERY_MESSAGE' => 'false',
             'GLOBAL_AUTORESPONDER_REPEAT_MINUTES' => '1440',
             'GLOBAL_AUTORESPONDER_DYNAMIC_MAILBOX_SCOPE' => 'true',
@@ -93,9 +93,14 @@ final class Settings
         return $this->getString('GLOBAL_AUTORESPONDER_TIMEZONE', 'Europe/Warsaw');
     }
 
+    public function backendMode(): string
+    {
+        return $this->getString('GLOBAL_AUTORESPONDER_BACKEND', 'da');
+    }
+
     public function scheduleMode(): string
     {
-        return $this->getString('GLOBAL_AUTORESPONDER_SCHEDULE_MODE', 'exact_hour');
+        return $this->backendMode() === 'da' ? 'directadmin_period' : 'exact_hour';
     }
 
     public function replyEveryMessage(): bool
@@ -148,8 +153,8 @@ final class Settings
         } catch (Throwable) {
             throw new InvalidArgumentException('Invalid timezone: ' . $this->timezone());
         }
-        if (!in_array($this->scheduleMode(), ['exact_hour', 'directadmin_period'], true)) {
-            throw new InvalidArgumentException('Invalid schedule mode: ' . $this->scheduleMode());
+        if (!in_array($this->backendMode(), ['da', 'exim'], true)) {
+            throw new InvalidArgumentException('Invalid backend mode: ' . $this->backendMode());
         }
         if ($this->repeatMinutes() < 0) {
             throw new InvalidArgumentException('Invalid repeat minutes');